The design and construction contracts for China's first and the world's largest 740TEU pure electric open container ships have been officially signed. This marks that China's coastal container ship operation will enter the zero-emission, pure electric era, in order to practice the national "dual-carbon" strategy, and promote the green zero-carbon high-quality development of China's shipping is a milestone significance.

    The ship type was independently developed and designed by Shanghai Ship Research and Design Institute of China State Shipbuilding Corporation for Ningbo Ocean Shipping Co., LTD., and will be built by Jiangxijiang New Shipbuilding Co., LTD., fully demonstrating the design concept of "energy saving, environmental protection, economy, efficiency and intelligence" (4e1i), and showing environmental protection and technological sense in appearance color and shape. It is expected to become the market benchmark ship type.

    The ship has a total length of 127.8 meters, a width of 21.6 meters, and a design draft of 6.2 meters. It can sail in the domestic coastal navigation area, and the target route is Ningbo-Zhapu. It is classified into China Classification Society (CCS). The ship has about 740 standard 20-foot compartments and can carry more than 9,000 tons of dead weight. The ship has 4 cargo holds and 7 hatches, all of which are hatchless design, reducing loading and unloading time and berthing time; The electric pusher compartment is set in the stern, which has one more cargo compartment than the conventional power ship, and has a larger cargo space. The bow is also specially equipped with a wind-drag type superstructure, which can effectively reduce vibration noise and improve the comfort of the crew's working life.

    Equipped with 10 box batteries as a power source, a total of about 19,000 KWH. The ship has fully considered the safety of the battery and has a multi-level architecture battery management system. The box-type battery is arranged away from the living space and the cargo area, and the surrounding environment is well ventilated.

    It is fixed with a lightweight lashing bridge, and is topped with an anti-fall collision platform, which is also equipped with a photovoltaic system above the platform to provide renewable energy for the ship. The battery power system is redundant and can maintain effective propulsion in failure mode, returning to the nearest port. Set up integrated energy management system to run power station load reasonably and efficiently. When the ship is docked at Zhapu and Ningbo ports, it can be quickly changed by high-voltage shore charging or by lifting box-type batteries.

    In particular, the ship is equipped with an intelligent system integration platform, with real-time ship perspective, all-weather navigation visual perception, route planning, unmanned, autonomous collision avoidance, driving mode switching and other functions. The shore-based operation and maintenance center can carry out real-time monitoring of ship equipment and remote control, bringing a new experience to ship operation and navigation.

    Improved maneuverability in complex waters with twin propeller propulsion. The propulsion system, developed by China Shipbuilding Institute 704, is equipped with two 875 kW permanent magnet synchronous propulsion motors with a maximum speed of 11.5 knots to achieve zero emissions for operation, berthing and loading and unloading.

    Lithium as a clean energy, the industry is optimistic about its place in the future energy. With the construction of supporting facilities such as changing power stations, the ship type can greatly improve the endurance capacity, which is expected to produce more application scenarios and further improve the level of diversified carbon reduction.